Electric Traction For three-phase induction motors which of the following is the least efficient method of speed control? Rheostat control Pole changing Combination of cascade and pole changing Cascade control Rheostat control Pole changing Combination of cascade and pole changing Cascade control ANSWER DOWNLOAD EXAMIANS APP
Electric Traction In case of a steam engine an average coal consumption per km is nearly 28 to 30 kg 100 to 120 kg 150 to 175 kg 60 to 80 kg 28 to 30 kg 100 to 120 kg 150 to 175 kg 60 to 80 kg ANSWER DOWNLOAD EXAMIANS APP
Electric Traction The resistance encountered by a train in motion is on account of Friction at various parts of the rolling stock Friction at the track All of the listed here Resistance offered by air Friction at various parts of the rolling stock Friction at the track All of the listed here Resistance offered by air ANSWER DOWNLOAD EXAMIANS APP
Electric Traction The rate of acceleration on sub-urban or urban services is restricted by the consideration of Passenger Discomfort Track size Track curves Engine power Passenger Discomfort Track size Track curves Engine power ANSWER DOWNLOAD EXAMIANS APP
Electric Traction For diesel locomotives the range of horsepower is 1500 to 2500 1000 to 2000 500 to 1000 2000 to 2500 1500 to 2500 1000 to 2000 500 to 1000 2000 to 2500 ANSWER DOWNLOAD EXAMIANS APP
Electric Traction In case of ___________ free running and coasting periods are generally long. Mainline service Suburban service All of the listed here Urban service Mainline service Suburban service All of the listed here Urban service ANSWER DOWNLOAD EXAMIANS APP
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